The Great Wall built by Emperor First Emperor was all made of glutinous rice mortar.

After countless years of wind and rain, it still stands tall.

But the cost of glutinous rice mortar is too expensive.

Emperor Hongwu had thought about using glutinous rice mortar to repair the Jinling city walls.

However, just building the Sanli City Wall consumed more than 100,000 kilograms of high-quality glutinous rice, and almost couldn't pay the officials a salary.

In desperation, he had to suspend the plan to repair the city wall.

Now, Fang Shiyu, the little bastard, actually wants to use the cost of Sanhedi soil to repair a building comparable to glutinous rice mortar.

It's simply a fool.

"Haha, I know you don't believe it."

Fang Shiyu smiled slightly, pointed to the lime on the ground and said with a smile.

"These limes are the capital that I dare to make this crazy statement."

After glanced at the lime on the ground, Zhu Yuanzhang's eyes were filled with disappointment.

He probably guessed what the hell was Fang Shiyu's idea.

The cost of Sanhe Tu is less than one percent of the glutinous rice mortar, and then Fang Shiyu, the little bastard, actually wanted to sell 10% of the glutinous rice mortar.

The price has increased by hundreds of times.

You have whitewashed the money, but the officials in charge of this work are no longer insecure.

Do you think the officials of the Ministry of Works are all fools?

Not only Liu Bowen didn't believe it, but even Lan Yu and Zhu Yuanzhang next to him didn't believe it.

"Hahaha……"

"I knew you didn't believe it. Now I'll give you an experiment and give you a long eye."

"I will slap you in the face with real objects."

Seeing the disbelief of the few people, Fang Shiyu picked up a few flat stone bricks next to him.

Immediately afterwards, Fang Shiyu brought some sand, mixed it with the lime in the yard, and then mixed it with water.

"Hey, this thing is not a three-metal soil, and there is no clay added to it."

"Little bastard, what are you doing?"

Looking at Fang Shiyu who was simmering cement, Lan Yu next to him couldn't help but scream.

The normal method of making three-combination soil is to mix lime, clay and sand.

But when it comes to Fang Shiyu, the little bastard, he doesn't mix clay, which is much less expensive.

This heart is really bad.

"Don't make a noise, let's see what this kid Fang Shiyu is going to do."

Liu Bowen said in a deep voice beside him.

Seeing Fang Shiyu doing things seriously, Liu Bowen was surprised to find that the other party was not joking with him, and his attitude was very serious.

Let me take a good look at it, Mr. Fang, what can you do to make a fortune?

Not only Liu Bowen, but also Lan Yu and Zhu Yuanzhang next to him looked very carefully.

With Fang Shiyu's constant stirring, the lime and sand quickly turned into a muddy ball.

Fang Shiyu picked up a shovel, then applied a lump of cement to two stone bricks, and then connected them together and placed them on the floor.

"It's done, it'll be fine in a while."

"About the time to have a cup of tea."

Fang Shiyu said seriously.

"You really didn't fool us?"

Zhu Yuanzhang asked.

It’s not that he wanted to doubt it, but that Fang Shiyu’s actions were really too casual.

There is no clay inside, and there are few unknown objects that Fang Shiyu rubs on it. Can it really stick?

Moreover, the traditional three-dimensional solidification time takes at least one week, and this kid Fang Shiyu actually claims to be able to solidify by drinking a cup of tea.

Who are you lying to?

"I know you don't believe it, look at my next move."

Fang Shiyu picked up the solidified stone bricks and smashed them down to the ground.

"Bang!"

The stone bricks made a crisp sound on the ground, and a hole was actually smashed into the floor made of hard bluestone slabs.

However, the two stone bricks on the ground are firmly stuck together.

"Am I dazzled? Magnolia, go and try it for me."

"Affect the order."

Lan Yu took a step forward, picked up the bricks on the ground, then took a big knife from the side, aimed at the gap between the stone bricks and slashed it violently.

"Bang!"

As Lan Yu slashed the big knife in his hand, the fashion still remained motionless, but a faint white mark was left in the middle.

"What did I see?"

Lan Yu withdrew the big knife in shock. After thinking for a while, he suddenly took the big knife and slashed at the courtyard wall made of three-piece soil next to him.

Effortless.

As Lan Yu exerted force on his hand, he cut a big hole into the wall in Fang Shiyu's yard, which showed that his big knife was not a problem.

"Mr. Fang, how did you do it? This unknown object is even more useful than glutinous rice mortar."

Looking at the bricks on the ground, Zhu Yuanzhang was really shocked.

This unknown object is not only easier to use than glutinous rice mortar, but also has a very short solidification time.

What magical thing is this?

"I've been attached to the appearance, do you want to know why? This is because I've added some materials to it."

"Now this thing is no longer called Sanhedi, I call it cement."

Fang Shiyu said proudly.

When firing lime, Fang Shiyu added some gypsum and clay to it according to the proportion.

When the lime was released, he added some catalysts drawn from it in the system.

The final product is several times better than the best cement in later generations.

"Now, with the artifact of cement, do you think I can take over the work of building the city wall?"

Fang Shiyu asked with a smile.

Fang Shiyu believes that as long as those officials are not blind, they will definitely use the cement they created.

"Xiao Fangzi, you need to inform me to know some officials from the Ministry of Works. I will call them over now for you to check."

After saying this, Zhu Yuanzhang gave a few instructions in Lan Yu's ear.

Hearing Zhu Yuanzhang's orders, Lan Yu nodded, then turned around and left the courtyard, and ran towards Jinling City.

Professional things must be left to professionals.

Zhu Yuanzhang believed that officials of the Ministry of Works had a greater say than himself.

Fang Shiyu nodded with satisfaction.

You must know that this is a very important thing, and it is understandable that Old Man is more cautious.

Not long after, Lan Yue quickly recited Luo Furen, the Minister of Works.

At this time, Luo Furen's face appeared confused.

He was thinking about how to build the city wall in his office, and for this matter he lost his hair.

But he didn't expect that Lan Yu would break into his office, and did not explain to him, forcibly put on a dress as a minor official, and brought him over.
Chapter completed!